The document discusses the parts of a transformer including the core, coils, insulation, and casing. It notes that the core is made of laminated silicon steel and that the primary and secondary coils are wound around the core. The coils are insulated from each other and the core using insulation material to prevent short circuits. The casing surrounds and protects all internal parts from damage.

1. TRANSFORMERS
ELECTRICAL 3RD
YEAR DAE
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2.  PARTS OF A TRANSFORMER
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